Electrical hand tool machine with soft-start

Details Electrical hand tool machine with soft-start Electrical hand tool machine with soft-start

2005-04-19

2005-04-19

Masih, Karen (Department: 2837)

Electricity: motive power systems

Induction motor systems

Primary circuit control

C318S434000, C318S432000

Reexamination Certificate

active

06882127

ABSTRACT:
An electrical hand tool machine (1) having a motor switch (2) configured as a button and a current regulator (4) disposed in the current circuit of an electrical motor (3), having a soft-start input (5), in whose branch current a timing capacitor (6) is arranged. A current-direction-dependent element (7) is arranged between the soft-start input (5) and the capacitor (6).

REFERENCES:
patent: 3593692 (1971-07-01), Scholl et al.
patent: 4614843 (1986-09-01), Coulmance
patent: 4683975 (1987-08-01), Booth et al.
patent: 5014793 (1991-05-01), Germanton et al.
patent: 5469002 (1995-11-01), Garrett
patent: 6222285 (2001-04-01), Haley et al.

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